NDISUIO - Switch between Ad-Hoc and Infrastructure mode

Hi,

I try to switch between Ad-hoc and infrastructure mode since one week on
my iPAQ 5550 with the NDISUIO queries but it does not want to work. I
can only set the SSID.
I disable the Zero Configuration service, but it doesn't help.

To set the network mode, here is my code:

HRESULT WLANCtrlApp::SetNetworkMode(int *pnNetworkMode, PTCHAR
ptcDeviceName)
{
UCHAR SetBuffer[sizeof(NDIS_OID) +
sizeof(NDIS_802_11_NETWORK_INFRASTRUCTURE)];
PNDISUIO_SET_OID pSetOid;

if(!pnNetworkMode || !ptcDeviceName) {
m_hRes = E_POINTER;
}
else {
pSetOid = (PNDISUIO_SET_OID)&SetBuffer[0];
pSetOid->ptcDeviceName = ptcDeviceName;
pSetOid->Oid = OID_802_11_INFRASTRUCTURE_MODE;

memcpy(&pSetOid->Data[0], pnNetworkMode,
sizeof(NDIS_802_11_NETWORK_INFRASTRUCTURE));


if(!DeviceIoControl(m_hFileHandle,IOCTL_NDISUIO_SET_OID_VALUE,(LPVOID)&SetBuffer[0],sizeof(SetBuffer),(LPVOID)&SetBuffer[0],0,
&m_dwBytesReturned,NULL)) {
m_hRes = E_FAIL;
m_dwError = GetLastError();
}
else
m_hRes = NOERROR;
}

return m_hRes;
}


(*pnNetworkMode = 0 for Ad-Hoc and 1 for infrastructure mode)


I got the error 87: The parameter is incorrect, and I don't get why
since NDIS_802_11_NETWORK_INFRASTRUCTURE is an enumeration.

Did someone manage to switch modes with NDISUIO calls??

Regards,
Marc-Aurèle

 

Just an error in the code... really sorry!